Bug 1655607 (CVE-2018-19478)

Summary:	CVE-2018-19478 ghostscript: Attempting to open a carefully crafted PDF file results in long-running computation (699856)
Product:	[Other] Security Response	Reporter:	Cedric Buissart <cbuissar>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	deekej, mosvald, security-response-team, twaugh, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	ghostscript 9.26	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:43:27 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1655682, 1656319, 1656337
Bug Blocks:	1655596

Description Cedric Buissart 2018-12-03 14:28:34 UTC

Attempting to open a carefully crafted PDF results in a long-running computation. The page tree nodes are deeply nested where a child page tree node may be a descendent of multiple parents.

Upstream bug:
https://bugs.ghostscript.com/show_bug.cgi?id=699856

Upstream fix:
http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=0a7e5a1c309fa0911b892fa40996a7d55d90bace

Comment 4 Cedric Buissart 2018-12-05 09:12:11 UTC

Created ghostscript tracking bugs for this issue:

Affects: fedora-all [bug 1656319]

Comment 6 Cedric Buissart 2018-12-05 12:38:37 UTC

Mitigation:

Please refer to the "Mitigation" section of CVE-2018-16509 : https://access.redhat.com/security/cve/cve-2018-16509

Comment 7 Cedric Buissart 2018-12-18 08:40:47 UTC

Statement:

Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Moderate, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.